Gage for perforating-machines



F. S. GLINES.

GAGE FOR PERFORATING MACHINES.

'APPucmou FILED MAY :0. 1918.

Patenwd May 25, 1920.

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F s GLINES GAGE FOR PERFORATING MACHINES.

APPLICATION FILED MAY I0, 1918- 1,341,,312 Patented May 25, 1920'.

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FREDERICK S. GLINE S, OF LYNN, MASSACHUSETTS, ASSIGNOR TO LORENZMUTI-IER, 0F

NEWTON, MASSACHUSETTS.

GAGE FOR PERFORATING-MACHINES.

Specification of Letters Patent.

Patented May 25, 1920.

Application filed May 10, 1918. Serial No. 233,642.

To all whom it may concern Be it known that I, FREDERICK S. GLINEs,

a citizenof the United States, residing at Lynn, in the county of Essexand State of Massachusetts, have invented a new and Improved Gage forPerforating-Machines, of which the following is a specification,reference being had therein to the'accompanying drawings.

This invention relates to perforating machines and more particularly toa gage for positioning material of irregular shape in such machinesduring a perforating operation. 1

Heretofore, in the use of what are termed gang perforatingmachines, thatis machines having a series of punches of varying form of cutting edgeand arranged to cut a design in one operation, it has been CUSlJOIDAIYto position the materialto be perforate by means of a longitudinal lineand a cross line or by a series of lines engraved on the platesupporting the work. The operator then gaged the position of the work bythe eye, which, of course, was not entirely satisfactory and frequentlyresulted in the design being perforated askew. This was particularlynoticeable in perforating operations on shoe Vamps which were irregularin form. Furthermore, the arranging of the work in relation to the lineson the supporting plate generally required an unnecessary expenditure oftime and thus slowed down the work. So far as I am aware no positivemeans have heretofore been provided for positioning work of thischaracter ina gang perforating machine.

Them'ain object of my invention is to provide a gage whereby material ofirregular shape may be rapidly and accurately positioned in aperforating machine during the perforating operation.

Another objectof my invention is to providea device which may be easilyadjusted to variously shaped materials and then set in that adjustedposition.

An additional object of my invention is to provide means whereby theposition of the gage is indicated so that it later the gage is changedfor other work, it may be returned to itsfirst adjusted position with aminimum of effort and time. A further object of my inventlon is toprovide a snap e, cheap, compact and accurate device for accomplishingthe foregoing objects.

Other objects of my invention will be in part obvious and in partpointed out hereinafter.

Briefly described, my invention contemplates a plate or support for thematerial to be perforated, a slide movably arranged on said. plate withmeans for securing it in any adjusted position; said slide beingprovided with adjustable arms for engaging the edges of the material tobe positioned and means for moving said arms and for securing them inany adjusted position. My invention further, contemplates one or moresets of graduations arranged in conjunction with said slide so that arecord may be made of any adjusted. position to facilitate a return tothat position afterward.

In the accompanying drawings illustrating one embodiment of myinvention, F igure 1 is a side elevation, partly in section, of oneapplication of my device; Fig. 2 is a front elevation looking from leftto right along line 22 in Fig- 1; Fig. 8 is an enlarged plan view of mydevice illustrating its use in connection with a shoe vamp which isshown in dotted lines; Fig. 4. is a view, partly in elevation and partlyin section, taken on line 4c4; in Fig. 3; and Fig. 5 is a section takenon line 5-5 in Fig. 3.

My device is shown in the drawings as applied to a perforating machineof the type commonly known as a gang perforator. It is to be understood,however, that my invention is not limited in its application to theparticular kind of a machine shown.

Referring now more particularly to the drawings there is shown at 10 aframe of a gang perforating machine having a shaft 11 journaled in itsupper part upon which is fixed an eccentric 12 which carries a strap 13connected by means of a pin l/lto one end of toggle links 15 and 16. Theother end of the link 15 is connected by means of a pin 17 to a screw 18which is threaded into the upper part of the frame 10 and may beadjusted by means of nuts 19 and 20. The link 16 is connected by a pin21 to a slide 22 which is adapted to slide in a guideway formed in theframe 10 and is retained in its guideway by a plate 23.

The lower end of the slide 2.9. is enlarged and provided on its underside with a transverse recess 24 and a dove-tailed groove 25 on eachside adapted to receive a plate 26 in which may be secured punches 27(see Fig. 4) of any desired number, shape and arrangement. The plate 26is retained in operative position by means of a screw 28 which hasmounted upon it a ratchet 29 and co-acting pawl 30 adapted to preventthe screw 28 from loosening during the operation of the machine. Thepunches 27 are hollow (see Fig. 4) and have a cutting edge 31. In theperforating operation the hollow punches cut out pieces of the materialwhich pile up in the interior of the punch until they reach the top andthen drop out through the slot 24. The plate 26 may have plugs 32secured to its upper surface and contacting with the slide 22 to pre'vent bending of said plate.

At 33 is shown'a cross-piece or bridge having stiffening ribs 84 and 35and an elongated slot 36 for a purpose to be described hereinafter.

A pulley or belt wheel 37 is mounted for rotation upon the shaft 11 andis retainedin position by washer 38 and screw The pulley 37 has a clutch40 adapted to be operated by a rod 41 to cause rotation of the shaft 11.The rod 41 is spring-pressed upwardly toward the shaft 11 and isconnected to a treadle or other suitable means whereby the operator maywithdraw said rod from engagement with the clutch 40 whereupon power istransmitted to shaft 11 until the operator releases the treadle and therod 41 is moved upwardly by means of its coacting spring (not shown).

There is shown at 42 (see Figs. 3 and 4) a base plate having a stud 43secured to its under side. Threaded upon the stud 4 is a nut 44 adaptedto secure the plate 42 in operative position upon the bridge 33 as shownin Fig. 4. All of the foregoing construction is old and well known inthe art and forms no part of my invention.

The novel means constituting one cm bodiment of my invention comprisesthe followin The support or work plate 42 is provided with alongitudinal slot 45 adapted to receive a tongue 46 formed on the underside of a slide 47 so that the slide is held in the slot against lateralmovement by means of the tongue, but is free to be moved longitudinallyon the plate. At each end the slide is provided with two slots 48 and 49in which arms 50-5O and 5151 are respectively mounted by means of pins52--52 and 5353. Upon the outer extremities of the arms rolls 54 arerotatably mounted on fixed pins, the lower side of the rolls restingupon the upper face of the work plate.

For the purpose of moving each pair oi? .arms into any desired position.independently of the other pair, and for holding them in any adjustedposition, various means may be provided and one such comprises thefollowing instrumentalities. The slide 47 is provided with tapped holes55 and 56. Each of these holes is located near the pivot points of onepair of arms and between the two arms constituting the pair. These holesare threaded and adapted to receive screws 57 and 58 respectively, (seeFig. 4), each screw having a knurled head at its lower extremity tofacilitate ad jnstnient and having a substantially cone shaped pointwhich is adapted to enter between the two arms constituting a pair asshown in Fig. 5; so that. when the screw is moved upwardly, the coneshaped point spreads the two arms constituting the pair. Springs 76 and77 are provided and mount ed on each screw respectively between the headand the lower side of the plate 42 in order to hold its respective screwagainst any loosening from the vibration in the machine. Flat springs 59and 60 are secured respectively to opposite sides of the slide 47 andeach engage at their extremities with one of each pair of arms 50-50 and5l5]. in order to hold the arms in engagement with the cone shaped endsof the screws 57 and 58 respectively.

The revolution of one of the screws 57 or 58 in one direction willadvance its conrpointed. contact with both arms of the (0r respondingpair, and as a result, the nuns will 'be spread apart. When the screw isrevolved in the opposite direction, the arms. under the influence of theflat springs 59 and 60, move toward each other or close in. Tt will beobserved that either pair of arms may be adjusted independentlyoi theother. The tapped holes 55 and 56 are adjacent the pivot pins 52 and 53,and, therefore. a small movement of either oi the screws will cause asubstantially greater movement oi the corresponding pairs of arms. Pins61 and 62 are provided to prevent the respective pairs of arms fromclosing on the center ]inc of the slide and thus preventing theoperation of screws 57 and 58 with their correspondvarions adjustmentsof my device so that it may be set in each end oi the slide 47 which maybe used as a center guide in positioning the work.

In order that the slide may be secured longitudinally on the plate 42 inany ad justed position, I provide the tollowing means: A stud 63 issecured midwav in the slide 47 extending downwardly through the tongue46, and has threaded upon it a. nut 64 having a knurled head Whirl) failitates clamping the slide 47 in any desired position of longitudinaladjustment upon the plate. It may be desired. to remove the gageentirely from the plate and in doing this the slot 45 isenlarged at oneend,.as shown at 65. (see Fig. The nut 64 may be loosened, and the gagemoved toward the outer end of the plate until the nut is opposite theopening 65 when the gage may be readily removed without separating thenut from the stud.

In order that a recording may be made of various adjustments of m deviceso that it may be returned to any esired adjustment for any special kindof work without. undue delay the plate 42 may be provided with a set ofgraduations on each side of the slot 45, as shown at 66 and 67. Theslide'47 has pointers 68 and 69 pressed into it transversely, the saidpointers being adapted to cooperate with the graduations 66 and 67 toindicate different positions of relative adjustment. The object inproviding two sets of pointers is to insure the cooperation of at leastone set of pointers with graduations on the plate 42 when the bodymember is in extreme position of adjustment. Preferably the graduationseach correspond to differences between one-half sizes in shoes, so thatmy gage is used for positioning shoe vamps or shoe tips in theperforating machine. The gage may be changed from one size of vamp tothe next size, or to other sizes, by moving it in one direction or theother a number of graduations equal to the number of half sizes betweenthe size of the vamp to which it is to be adjusted next. This insuresrapid adjustment from one size to another on shoe parts and saves thetime of the operator, and facilitates the progress of the work.

There may be inserted in the plate 42 at one end a piece of softermetal, as for in stance, brass or copper 70, so that the cutting edge ofthe perforating punches may not be rapidly dulled. Secured above theplate 42 and slightly spaced therefrom is a plate 71 having holes 72corresponding with the perforating punches. The plate 71 is adapted tostrip the perforated material from the punches as they move upwardly.

In the operation of my device the plate 42 is secured in position on thecross-piece 33 by means of stud 43 and nut 44, and the slide 47 is heldon the plate by the tongue 46, engaging the slot 45.

In some kinds of shoes as now manufactured, the toe cap is dispensedwith and a design is perforated on the forward end of the vamp whilesaid vamp is fiat. Such a vamp is indicated by broken lines at 73. Thevamp having been inserted between the stripper plate 71 and the baseplate 42 and moved to the desired position, the pair of arms 50-50 maybe adjusted'by means of the cooperating screw 55 to contact with certainparts of the vamp as indicated at 7474. The other pair of arms may bealso adjusted to another portion of the vamp, as indicated at 75-45.When the foregoing adjustments have been made, the slide 47 may besecured in position by means of the nut 64 and the perforating operationmay proceed. Each vamp is held flat on the plate 42 and moved intocontact with the 10- eating arms 50-50 and 51-51, thus insuring exactand uniform location of each vamp with respect to the perforatingpunches.

After the correct adjustment for any particular size of vamp has oncebeen obtained, it is only necessary to make a record of the particularmark in the set of graduations utilized and thereafter the gage may beset to the recorded mark without a series of trials.

It is to be noted that my device enables shoe parts of irregular shapeto be positioned for the perforating operation and that after theirposition has been determined and secured that there is no furthernecessity ,for the exercise of the judgment of the op erator, but thepieces are positioned accurately and without any loss of time, due toadjustment. secured so that the perforating, for instance on Vamps, isexactly alike on both shoes of each pair and on all the pairs, thussaving the time of the operator in adjusting the vamp on the last wherethe perforations were slightly askew, which was a frequent occurrence.

It is further to be observed that the provision of graduations inconnection with a gage enables the latter to be changed rapidly from onesize of shoe part to another size, and also permits of the keeping of arecord as to the exact position of a certain style of part so that byreference to that record at a subsequent time, the same style may beagain perforated in uniformity with the previous ones of that style.

It is to be understood that my invention is not to be limited to theexact embodiment herein shown and described, since it is ca pable ofbeing embodied in various other forms of construction, and I desire toclaim the invention broadly except where specificall limited in thefollowing claims.

at I claim is 1. A gage for perforating machines, having, incombination, a work-support provided with a slot, a slide movablymounted in said slot, a pair of forwardly extending arms" forpositioning the work, each of said arms being pivotally mounted at oneend on said slide adjacent to the other of said arms and having at itsother end a roll for engaging the work, a pointed screw carried by saidslide and located between said arms adjacent their pivot points foradjustably spreading said arms to position work of various sizes and twosprings secured to said slide for engaging said arms to hold them inadjusted position against said pointed screw.

2. A gage for perforating machines, hav- A uniformity in the work is,

ing, in combination, a work-support provided with a slot, a set ofgraduations arranged in operative relation to said slot, a slide mountedin said slot and provided with pointers cooperating with saidgraduations to indicate the position of the slide, a pair of forwardlyextending arms for positioning the work, each of said arms beingpivotally mounted'at one end on said slide, adjacent to the other ofsaid arms, a pointed screw carried by said slide and located betweensaid arms adjacent their pivot points for adjustably spreading said armsto position work of various sizes and two springs secured to said slidefor engaging said arms to hold them in adjusted position against saidpointed screw.

3. A gage for perforating machines, having, in combination, awork-support provided with a slot, a slide movably mounted on said slot,two pairs of arms for positioning the work, one pair extending forwardlyand the other pair extending rearwardly, the two arms of each pair beingpivotally mounted at one end thereof on said slide adjacent to eachother, two pointed screws carried by said slide, each of said screwsbeing located between the two arms of one pair adjacent to their pivotpoints for adj ustably spreading the arms of said pair and two springssecured one on each side of said 1 slide, each of said springs engagingone of the arms of each pair for holding said arms in'adjusted positionagainst their respective pointed screws.

4.. A gage for perforating machines, havthereof on said slide adjacentto each other, A

two pointed screws carried by said slide, each of said screws beinglocated between the two arms of one pair adjacent to their pivot pointsfor adjustably spreading the arms of said pair and two springs securedone on each side of said slide, each of said springs engaging one of thearms of each pair for holding said arms in adjusted position againsttheir respective pointed screws.

5. A gage for perforating machines, having, in combination, awork-support provided with a slot, a slide movably mounted in said slot,a pair of forwardly extending arms for positioning the work, each ofsaid arms being pivotally mounted at one end on said slide adjacent tothe other of said arms, a pointed screw carried by said slide andlocated between said arms adjacent their pivot points for adjust-ablyspreading said arms to position work of various sizes and two springssecured to said slide for engaging said arms to hold them in adjustedposition against said pointed screw.

In witness whereof I hereunto set my hand this twenty-third day ofMarch, 1918.

FREDERICK S. GLINES.

